Chest:

Measure around fullest part of your chest (usually at the nipple). Hold the tape sufficiently easy -allow room for one index finger between the tape and the body. Keeping tape up under armpits, and make sure that it is centered well over shoulder blades in back and over fullest part of the breast in front.

Trousers Waist:

Measure around waist just above trousers waistband, at the height you normally wear trousers (usually just above your hipbone). Measure exactly, to a tightness you would feel comfortable wearing -allow room for one index finger between the tape and the body for proper fit. Do not measure over belt or waistband. (FIT TIP- Another way is to take one of your best fitting pair of trousers and measure around trousers waistband from center of button to far end of buttonhole.)

Shoulder to Shoulder:

Measure your body from the end of one shoulder to the other end of shoulder (place the tape at the end of shoulder bone, where the arms are connected).

Vest length:

Turn up collar. Measure from upper end of shoulder seam where it joins the collar to length desired. Make sure you measure to the same point as back length.